Restore translation alignment web annotations

[jacobwegner]

• https://github.com/scaife-viewer/explorehomer-atlas/pull/41
• https://github.com/scaife-viewer/backend/pull/16/files
• https://aniop-atlas-staging.eldarion.com/wa/discovery/?canvas_id=https://rosetest.library.jhu.edu/rosademo/iiif/homer/VA/VA035RN-0036/canvas
• https://aniop-atlas-staging.eldarion.com/wa/urn:cite2:hmt:msA.v1:12r/translation-alignment/collection/0/
• https://explorehomer-atlas-dev.scaife-viewer.org/wa/urn:cite2:hmt:msA.v1:12r/translation-alignment/collection/0/
• https://aniop-atlas-staging.eldarion.com/wa/discovery/?canvas_id=https://rosetest.library.jhu.edu/rosademo/iiif/homer/VA/VA012RN-0013/canvas

[jacobwegner]

I think https://github.com/scaife-viewer/beyond-translation-site/issues/29 unblocks us here.